IPA: //ˈtræktəblnəs//
KK: /ˈtræktəblnəs/
The quality of being easily managed or controlled; the ability to be influenced or guided.
The tractableness of the new employee made it easy for the manager to train him.
Tractableness → It is formed from "tractare" (meaning to handle or manage) and the suffix "-ness" (meaning the state or quality of). The word "tractableness" refers to the quality of being easily managed or handled.
Think of the word 'tractare' which means to handle, and remember that 'tractableness' describes the quality of being easy to handle or manage.